diff --git a/pyproject.toml b/pyproject.toml
index f048a174..f998d3f0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "scientific-python-hugo-theme"
-version = "0.19"
+version = "0.20rc0.dev0"
 
 [tool.changelist]
 # Profiles that are excluded from the contributor list.